Facts
- Chemical formula
- (Ba,Na,K)₂(Na,Ti,Mn)₄(Ti,Nb)₂(Si₂O₇)₂O₂(H₂O,F,OH)₂·3.5H₂O
- Crystal system
- Monoclinic
- Elements in formula
- Barium, Sodium, Potassium, Titanium, Manganese, Niobium, Silicon, Oxygen, Hydrogen, Fluorine
- Number of elements
- 10
- IMA status
- Approved
- Type locality
- Umbozero mine
- Named after
- Alexandra V. Bykova
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3647858